I also find it rather odd, that Shapeshifter 3.11 was uploaded to Aminet in 2007, yet Basilisk II v0.9-1 was uploaded in 2003. Arch Linux has a AUR package dated 22032005, and Debian Sid has 0.9.20070407-4.
Shapeshifter on aminet was from 2000, basilisk ii is from 2001 (this is according to the dates you get when you click view lha).
Baslisk ii was the follow on to Shapeshifter, had was probably abandoned due to legal issues or because the ripped off 68k code wasn't portable.
"About this time ShapeShifter was released. After Joe and I looked at it, we were pissed beyond belief. The majority of the code came from AMAX IV, with some of our code, and even Apple's code. I immediately starting documenting the code, and the changes that the code went through after several releases (especially after making it clear that much of the code was 'borrowed'). After going through the lawsuit in the UK, the owner did not want to attempt to go after 'some kid in Germany', because it would cost too much money, and we would get nothing back.
I sent two registered letters to the author, and each letter was returned undeliverable. I just wanted him to stop while he was ahead. Joe and I are probably the best 68K reverse engineerers in the world. We have gone through gigs of code over the last 4 years, figuring out why certain MAC applications do weird things with our MAC emulation. We can tell which Apple engineer wrote any part of the ROM or OS code, based on their programming style. We knew AMAX IV well too. It was easy to document what code came from where inside of ShapeShifter.
At this point I really can't do much about ShapeShifter, although there are a couple of legal councils in Germany willing to take 80% of the earnings of a successful lawsuit. Personally, I think that when judgement day rolls around, the author will wish that ShapeShifter was just a character in Archon..."